 | 2009 |
|---|
| 30 |       | Ilias Michalarias,
Arkadiy Omelchenko,
Hans-Joachim Lenz:
FCLOS.
Data Knowl. Eng. 68(2): 192-220 (2009) |
| 29 | | Hans-Joachim Lenz,
Bernhard Thalheim:
A Formal Framework of Aggregation for the OLAP-OLTP Model.
J. UCS 15(1): 273-303 (2009) |
| 2007 |
|---|
| 28 | | Reinhold Decker,
Hans-Joachim Lenz:
Advances in Data Analysis, Proceedings of the 30th Annual Conference of the Gesellschaft für Klassifikation e.V., Freie Universität Berlin, March 8-10, 2006
Springer 2007 |
| 27 | | Ilias Michalarias,
Hans-Joachim Lenz:
Optimal Query Mapping in Mobile OLAP.
ADBIS 2007: 250-266 |
| 26 | | Veit Köppen,
Henner Graubitz,
Hans-Knud Arndt,
Hans-Joachim Lenz:
A Procedure to Estimate Relations in a Balanced Scorecard.
GfKl 2007: 363-371 |
| 25 | | Daniel Delic,
Hans-Joachim Lenz:
Non-Profit Web Portals - Usage Based Benchmarking for Success Evaluation.
GfKl 2007: 561-568 |
| 2006 |
|---|
| 24 | | Veit Köppen,
Marina Allgeier,
Hans-Joachim Lenz:
Balanced Scorecard Simulator - A Tool for Stochastic Business Figures.
GfKl 2006: 457-464 |
| 23 | | Hans-Joachim Lenz,
Veit Köppen,
Roland M. Müller:
Edits - Data Cleansing at the Data Entry to assert semantic Consistency of metric Data.
SSDBM 2006: 235-240 |
| 2005 |
|---|
| 22 | | Roland M. Müller,
Stephanie Haiduk,
Nadine Heertsch,
Hans-Joachim Lenz,
Myra Spiliopoulou:
Experimental Investigation of the Effects of Different Market Mechanisms for Electronic Knowledge Markets.
ECIS 2005 |
| 21 | | Roland M. Müller,
Myra Spiliopoulou,
Hans-Joachim Lenz:
The Influence of Incentives and Culture on Knowledge Sharing.
HICSS 2005 |
| 20 | | Ilias Michalarias,
Hans-Joachim Lenz:
Dissemination of Multidimensional Data Using Broadcast Clusters.
ICDCIT 2005: 573-584 |
| 19 | | Hans-Joachim Lenz,
Bernhard Thalheim:
OLAP Schemata for Correct Applications.
TEAA 2005: 99-113 |
| 2003 |
|---|
| 18 |  | Hans-Joachim Lenz,
Panos Vassiliadis,
Manfred A. Jeusfeld,
Martin Staudt:
Design and Management of Data Warehouses 2003, Proceedings of the 5th Intl. Workshop DMDW'2003, Berlin, Germany, September 8, 2003
CEUR-WS.org 2003 |
| 17 | | Michael R. Berthold,
Hans-Joachim Lenz,
Elizabeth Bradley,
Rudolf Kruse,
Christian Borgelt:
Advances in Intelligent Data Analysis V, 5th International Symposium on Intelligent Data Analysis, IDA 2003, Berlin, Germany, August 28-30, 2003, Proceedings
Springer 2003 |
| 16 | | Hans-Joachim Lenz:
Entity Level Data Integration by Statistical Methods.
SSDBM 2003: 3-4 |
| 15 | | Hans-Joachim Lenz,
Panos Vassiliadis,
Manfred A. Jeusfeld,
Martin Staudt:
Report on the 5th international workshop on the design and management of data warehouses (DMDW'03).
SIGMOD Record 32(4): 113-116 (2003) |
| 2002 |
|---|
| 14 | | Roland M. Müller,
Myra Spiliopoulou,
Hans-Joachim Lenz:
Expertenrat in E-Marketplaces.
HMD - Praxis Wirtschaftsinform. 223: (2002) |
| 2001 |
|---|
| 13 | | Hans-Joachim Lenz,
Bernhard Thalheim:
OLAP Databases and Aggregation Functions.
SSDBM 2001: 91-100 |
| 12 | | Markus Schaal,
Hans-Joachim Lenz:
Best Time and Content for Delay Notification.
TIME 2001: 75-80 |
| 11 | | Marcus Jürgens,
Hans-Joachim Lenz:
Tree Based Indexes Versus Bitmap Indexes: A Performance Study.
Int. J. Cooperative Inf. Syst. 10(3): 355-376 (2001) |
| 2000 |
|---|
| 10 | | Mattis Neiling,
Hans-Joachim Lenz:
Data Integration by means of Object Identification in Information Systems.
ECIS 2000 |
| 1999 |
|---|
| 9 | | Marcus Jürgens,
Hans-Joachim Lenz:
Tree Based Indexes vs. Bitmap Indexes - a Performance Study.
DMDW 1999: 1 |
| 8 | | Jörg Caumanns,
Hans-Joachim Lenz:
Hypermedia Fusion - A Document Generator for the World Wide Web.
ICMCS, Vol. 2 1999: 892-896 |
| 7 | | Marcus Jürgens,
Hans-Joachim Lenz:
PISA: Performance Models for Index Structures with and without Aggregated Data.
SSDBM 1999: 78-87 |
| 1998 |
|---|
| 6 | | Marcus Jürgens,
Hans-Joachim Lenz:
The Ra*-tree: An improved R-tree with Materialized Data for Supporting Range Queries on OLAP-Data.
DEXA Workshop 1998: 186-191 |
| 5 | | St. De Francisci,
Oliver Günther,
Hans-Joachim Lenz,
Maurizio Lenzerini,
Arie Shoshani:
OLAP and Data Warehousing in Statistical Databases (Panel).
SSDBM 1998: 167 |
| 1997 |
|---|
| 4 | | Hans-Joachim Lenz,
Arie Shoshani:
Summarizability in OLAP and Statistical Data Bases.
SSDBM 1997: 132-143 |
| 1994 |
|---|
| 3 | | Hans-Joachim Lenz:
The Conceptual Schema and External Schemata of Metadatabases.
SSDBM 1994: 160-165 |
| 1984 |
|---|
| 2 | | Hans-Joachim Lenz:
Performance Evaluation of Batch Inspection Schemes using Simulation on a Microcomputer.
IMACS European Simulation Meeting 1984: 119-122 |
| 1983 |
|---|
| 1 | | Hans-Joachim Lenz:
A Test Bench for Batch Inspection Systems.
ESC 1983: 201-206 |
